Kevin M. Beaver, Matt DeLisi, Michael G. Vaughn, John Paul Wright American Journal of Orthopsychiatry http://psycnet.apa.org/journals/ort/82/2/260/ 2012 Date Sat, 06/14/2014 - 05:16 PM Research Types 5HTTLPR Genotype ADD Health Depression Kevin M. Beaver Serotonin Stress